Goodwill (Tables)

3 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The following table sets forth the changes in the carrying amount of goodwill by reporting unit for the three months ended September 30, 2017:

	SMP		AMS		MDS		Total
Balance at June 30, 2017	$	116,003	$	217,956	$	46,887	$	380,846
Goodwill arising from the RTL acquisition	3,354		—		—		3,354
Balance at September 30, 2017	$	119,357	$	217,956	$	46,887	$	384,200